A^-b is the same as 1/a^b.
When there is a negative power, place the number and power over 1.
a^b/a^c = a^(b-c).
c is a negative power, because it is being divided, and is underneath b, which is a positive (and so it stays in the numerator).
a^c/b^c = (a/b)^c
Inside this one, the power of c is distributed to all numbers inside the parenthesis, in this case a and b.
hope this helps
Answer:
Can you post 4.3? We need more information to answer this.
Step-by-step explanation:
Answer:
5 Commemorative coin packs
3 coin holders
Step-by-step explanation:
Answer:
You have to invest $6,250
Step-by-step explanation:
very simple applying the simple interest formula which is

Given data
A, final amount
= $10,000
P, initial principal balance= ?
r, annual interest rate
= 7.5%
t, time (in years)= 8 years
we can substitute our given data to find the principal needed.

Divide both sides by 1.6 we have

P= $6,250